diff --git a/A00_Common/design/design_structure_form.ts b/A00_Common/design/design_structure_form.ts
index de75abeb6..10d353761 100644
--- a/A00_Common/design/design_structure_form.ts
+++ b/A00_Common/design/design_structure_form.ts
@@ -41,7 +41,6 @@ import {
 import { buildSummaryRow } from "../../B05_Profile/B05_Profile_UI_Structures_Summary_Row";
 import type { GroupItems, SummaryItem } from "../../common_util/common_util_summary_item";
 import { followPipeHeights } from "../../common_util/common_util_culvert_sets";
-import { createCheckbox } from "../../ui_template/ui_template_checkbox";
 
 /** 잇기 값 자리 — 패널 그룹 값(`group_items`)을 그대로 씀. */
 export interface SpecLinks {
@@ -144,13 +143,6 @@ export function createSpecForm(links: SpecLinks | null, hooks: SpecFormHooks = {
       select.value = tag ? "" : now;
       return select;
     }
-    if (item.kind === "bool") {
-      // 빈 값 = 기본값으로 체크(173-7) · 듣개가 `.value` 를 읽음 — 바뀔 때 "true" / "false"
-      const box = createCheckbox("", { checked: (values[item.id] || item.default) === "true" });
-      box.input.value = String(box.input.checked);
-      box.input.addEventListener("change", () => (box.input.value = String(box.input.checked)));
-      return box.root;
-    }
     if (item.kind === "text") {
       const input = document.createElement("input");
       input.type = "text";
diff --git a/A00_Common/design/design_structure_pipe.ts b/A00_Common/design/design_structure_pipe.ts
index 3aa987a31..9b1e7b79e 100644
--- a/A00_Common/design/design_structure_pipe.ts
+++ b/A00_Common/design/design_structure_pipe.ts
@@ -70,11 +70,15 @@ export const PIPE_SPEC: StructureSpec = {
           [BASIN]: { form: "inlet_structure", height: "inlet_basin_height_m" },
           [SOIL]: revetKeys("inlet"),
         }),
-        // 집수정만 · 빈 값 = 참(키 없는 옛 관도 동물이동형 · 173-7) · 저장만(B07 · B08 안 읽음)
+        // 집수정만 · 유 / 무 = 저장 "true" / "false" · 빈 값 = 유(필수 상자 기본 채움 · 177-2) · 저장만(B07 · B08 안 읽음)
         {
           id: "animal",
           label: "동물이동형",
-          kind: "bool",
+          kind: "select",
+          choices: [
+            { value: "true", label: "유" },
+            { value: "false", label: "무" },
+          ],
           default: "true",
           by: { item: "structure", map: { [BASIN]: { key: "inlet_basin_animal" } } },
         },
diff --git a/A00_Common/design/design_structure_spec.ts b/A00_Common/design/design_structure_spec.ts
index 5c80408e8..3ba11d1d1 100644
--- a/A00_Common/design/design_structure_spec.ts
+++ b/A00_Common/design/design_structure_spec.ts
@@ -32,8 +32,7 @@ export type SplitRole = "length" | "before" | "after";
 export interface SpecItem {
   id: string;
   label: string;
-  /** bool = 체크박스 · 저장 글 "true" / "false" · 빈 값 = `default`(173-7). */
-  kind: "select" | "number" | "text" | "auto" | "bool";
+  kind: "select" | "number" | "text" | "auto";
   /** 저장 키(필수 컨테이너 · `by` 없을 때). */
   key?: string;
   choices?: SpecChoice[];
diff --git a/resources/master_template/구조물정의.json b/resources/master_template/구조물정의.json
index 6cc24ba67..732b9baa1 100644
--- a/resources/master_template/구조물정의.json
+++ b/resources/master_template/구조물정의.json
@@ -3333,6 +3333,8 @@
         "inlet.before": "기준측점 전 (m)",
         "inlet.after": "기준측점 후 (m)",
         "inlet.animal": "동물이동형",
+        "inlet.animal=true": "유",
+        "inlet.animal=false": "무",
         "outlet.structure": "구조",
         "outlet.structure=기슭막이": "흙막이",
         "outlet.form": "형태",
diff --git a/resources/tester/helper_173_7_inlet_animal.cjs b/resources/tester/helper_173_7_inlet_animal.cjs
index 609c9c8db..89f9a38be 100644
--- a/resources/tester/helper_173_7_inlet_animal.cjs
+++ b/resources/tester/helper_173_7_inlet_animal.cjs
@@ -1,5 +1,5 @@
-/* 집수정 「동물이동형」 체크 칸(PLAN 173-7) 단위검증 헬퍼 — 공용 명세 폼을 그 자리에서 트랜스파일해 Node 로 돌린다.
- * 빈 값 = 체크 · 끄면 "false" · 다시 켜면 "true" · 흙막이 갈래엔 칸 없음. 결과는 표준출력에 JSON 한 벌.
+/* 집수정 「동물이동형」 칸(PLAN 173-7 · 177-2 고르기 유 / 무) 단위검증 헬퍼 — 공용 명세 폼을 그 자리에서 트랜스파일해 Node 로 돌린다.
+ * 빈 값 = 유("true" 적힘) · 무 = "false" · 다시 유 = "true" · 흙막이 갈래엔 칸 없음. 결과는 표준출력에 JSON 한 벌.
  * 짝 = `test_173_7_inlet_animal.py` · 화면 그릇 흉내는 `helper_54_10_soil_tiers.cjs` 꼴(+ 듣개).
  */
 const fs = require("fs");
@@ -121,32 +121,44 @@ const { createSpecForm } = loadTs(
 const { PIPE_SPEC } = loadTs(path.join(ROOT, "A00_Common", "design", "design_structure_pipe.ts"));
 
 const form = createSpecForm(null, {});
+// 177-2 — 체크박스 → 고르기(유 / 무) · 저장 글 "true" / "false" 그대로
 const box = () =>
   form.root
     .querySelectorAll("label")
     .find((l) => l.dataset.specItem === "inlet.animal")
-    ?.querySelector("input") ?? null;
+    ?.querySelector("select") ?? null;
 const animal = () => form.read().inlet_basin_animal ?? null;
-const toggle = (on) => {
-  const input = box();
-  input.checked = on;
-  input.fire("change");
+const pick = (v) => {
+  const select = box();
+  select.value = v;
+  select.fire("change");
+};
+const shown = () => {
+  const select = box();
+  return select
+    ? {
+        value: select.value,
+        options: select.children.map((o) => [o.value, o.textContent]),
+        saved: animal(),
+      }
+    : null;
 };
 
 const out = {};
 form.write(PIPE_SPEC, { pipe_diameter_mm: 1000, inlet_type: "집수정" });
-out.blank = { checked: box()?.checked ?? null, saved: animal() };
-toggle(false);
-out.off = { checked: box().checked, saved: animal() };
-toggle(true);
-out.on = { checked: box().checked, saved: animal() };
+out.blank = shown();
+pick("false");
+out.off = shown();
+pick("true");
+out.on = shown();
 form.write(PIPE_SPEC, {
   pipe_diameter_mm: 1000,
   inlet_type: "집수정",
   inlet_basin_animal: "false",
 });
-out.storedOff = { checked: box().checked, saved: animal() };
+out.storedOff = shown();
 form.write(PIPE_SPEC, { pipe_diameter_mm: 1000, inlet_type: "기슭막이" });
 out.soil = { shown: box() !== null, saved: animal() };
+out.checkbox = form.root.querySelectorAll("input").some((i) => i.type === "checkbox");
 
 process.stdout.write(JSON.stringify(out));
diff --git a/resources/tester/test_173_7_inlet_animal.py b/resources/tester/test_173_7_inlet_animal.py
index b8539c476..ccb323207 100644
--- a/resources/tester/test_173_7_inlet_animal.py
+++ b/resources/tester/test_173_7_inlet_animal.py
@@ -1,4 +1,4 @@
-"""173-7 집수정 「동물이동형」 체크 칸 — 공용 체크박스 · 저장 키 inlet_basin_animal · 빈 값 = 참.
+"""173-7 · 177-2 집수정 「동물이동형」 칸 — 고르기 유 / 무 · 저장 키 inlet_basin_animal("true"/"false") · 빈 값 = 유.
 
 공용 명세 폼(`design_structure_form.ts`)을 그 자리에서 돌린 값(`helper_173_7_inlet_animal.cjs`)
 + 배관 폼 키 목록(`B05_Profile_UI_Drainage_Facility_Merge.ts`).
@@ -28,14 +28,18 @@ def out() -> dict:
     return json.loads(done.stdout)
 
 
-def test_빈_값은_체크_저장_안_함(out: dict) -> None:
-    assert out["blank"] == {"checked": True, "saved": None}
+YU_MU = [["true", "유"], ["false", "무"]]
 
 
-def test_끄면_false_다시_켜면_true(out: dict) -> None:
-    assert out["off"] == {"checked": False, "saved": "false"}
-    assert out["on"] == {"checked": True, "saved": "true"}
-    assert out["storedOff"] == {"checked": False, "saved": "false"}
+def test_빈_값은_유_실제_값으로_적힘(out: dict) -> None:
+    # 177-2 — 필수 상자 빈 고르기 칸 = 기본값을 실제 값으로(54-43) · 옛 「저장 안 함」 뒤집음
+    assert out["blank"] == {"value": "true", "options": YU_MU, "saved": "true"}
+
+
+def test_무면_false_다시_유면_true(out: dict) -> None:
+    assert out["off"] == {"value": "false", "options": YU_MU, "saved": "false"}
+    assert out["on"] == {"value": "true", "options": YU_MU, "saved": "true"}
+    assert out["storedOff"] == {"value": "false", "options": YU_MU, "saved": "false"}
 
 
 def test_흙막이엔_칸_없음(out: dict) -> None:
diff --git a/resources/tester/test_177_2_inlet_animal_select.py b/resources/tester/test_177_2_inlet_animal_select.py
new file mode 100644
index 000000000..c77e1f35c
--- /dev/null
+++ b/resources/tester/test_177_2_inlet_animal_select.py
@@ -0,0 +1,38 @@
+# -*- coding: utf-8 -*-
+"""PLAN 177-2 — 동물이동형 = 고르기(유 / 무) · 체크박스 꼴(bool) 지움 · 화면 값은 helper_173_7."""
+
+import json
+import subprocess
+from pathlib import Path
+
+import pytest
+
+HERE = Path(__file__).parent
+ROOT = HERE.parents[1]
+DESIGN = ROOT / "A00_Common" / "design"
+
+
+@pytest.fixture(scope="module")
+def out() -> dict:
+    if not (ROOT / "config" / "node_modules").is_dir():
+        pytest.skip("의존성 미설치")
+    done = subprocess.run(  # noqa: S603 — 고정 실행 파일
+        ["node", str(HERE / "helper_173_7_inlet_animal.cjs")],
+        capture_output=True,
+        text=True,
+        encoding="utf-8",
+    )
+    assert done.returncode == 0, done.stderr
+    return json.loads(done.stdout)
+
+
+def test_체크박스_없음(out: dict) -> None:
+    assert out["checkbox"] is False
+
+
+def test_bool_꼴_지움() -> None:
+    spec = (DESIGN / "design_structure_spec.ts").read_text("utf-8")
+    form = (DESIGN / "design_structure_form.ts").read_text("utf-8")
+    pipe = (DESIGN / "design_structure_pipe.ts").read_text("utf-8")
+    assert '"bool"' not in spec and '"bool"' not in form and '"bool"' not in pipe
+    assert "createCheckbox" not in form